Synergistic weed control from applications of haloxyfop and ALS inhibitor herbicides

Abstract

Disclosed herein are herbicidal compositions comprising a synergistic, herbicidally effective amount of (a) haloxyfop or an agriculturally acceptable salt or ester thereof, and (b) an acetolactate synthase (ALS) inhibitor or an agriculturally acceptable salt or ester thereof. Also disclosed herein are methods of controlling undesirable vegetation which comprise applying to vegetation or an area adjacent the vegetation or applying to soil or water to prevent the emergence or growth of vegetation (a) haloxyfop or an agriculturally acceptable salt or ester thereof, and (b) an ALS inhibitor or an agriculturally acceptable salt or ester thereof, wherein (a) and (b) are each added in an amount sufficient to provide a synergistic herbicidal effect.

What is claimed is: 
     
       1. A herbicidal composition comprising a synergistic, herbicidally effective amount of (a) haloxyfop or an agriculturally acceptable salt or ester thereof and (b) penoxsulam or an agriculturally acceptable salt or ester thereof,
 wherein the composition does not include any additional herbicides. 
 
     
     
       2. The composition of  claim 1 , wherein (a) includes haloxyfop-R-methyl. 
     
     
       3. The composition of  claim 1 , wherein the weight ratio of (a) to (b) is from 1:50 to 100:1. 
     
     
       4. The composition of  claim 3 , wherein the weight ratio of (a) to (b) is from 1:20 to 6.4:1. 
     
     
       5. The composition of  claim 1 , wherein the weight ratio of (a) to (b) is from 1:50 to less than 1:2. 
     
     
       6. The composition of  claim 1 , wherein the weight ratio of (a) to (b) is from 5:2 to 4:1. 
     
     
       7. The composition of  claim 1 , wherein the weight ratio of (a) to (b) is from 1:8 to 6.4:1. 
     
     
       8. The composition of  claim 1 , further comprising a herbicidal safener. 
     
     
       9. The composition of  claim 1 , further comprising an agriculturally acceptable adjuvant or carrier. 
     
     
       10. A method of controlling undesirable vegetation which comprises applying to vegetation or an area adjacent the vegetation or applying to soil or water to control the emergence or growth of vegetation a composition comprising a synergistic, herbicidally effective amount of (a) haloxyfop or an agriculturally acceptable salt or ester thereof and (b) penoxsulam or an agriculturally acceptable salt or ester thereof,
 wherein the composition does not include any additional herbicides. 
 
     
     
       11. The method of  claim 10 , wherein (a) and (b) are applied postemergence to the undesirable vegetation. 
     
     
       12. The method of  claim 10 , wherein (a) includes haloxyfop-R-methyl. 
     
     
       13. The method of  claim 10 , wherein the weight ratio of (a) to (b) is from 1:50 to 100:1. 
     
     
       14. The method of  claim 13 , wherein the weight ratio of (a) to (b) is from 1:20 to 6.4:1. 
     
     
       15. The method of  claim 10 , wherein the weight ratio of (a) to (b) is from 1:50 to less than 1:2. 
     
     
       16. The method of  claim 10 , wherein the weight ratio of (a) to (b) is from 5:2 to 4:1. 
     
     
       17. The method of  claim 10  wherein the weight ratio of (a) to (b) is from 1:8 to 6.4:1. 
     
     
       18. The method of  claim 10 , further comprising applying a herbicidal safener. 
     
     
       19. The method of  claim 10 , further comprising applying an agriculturally acceptable adjuvant or carrier. 
     
     
       20. The method of  claim 10 , wherein the undesirable vegetation is controlled in rice, vineyards, orchards, perennial plantation crops, corn, cereals, sorghum, soybeans, cotton, sunflower, oilseed rape/canola, sugar beets, turf, range and pasture, industrial vegetation management (IVM), rights-of-way, or combinations thereof. 
     
     
       21. The method of  claim 10 , wherein the undesirable vegetation is controlled in rice. 
     
     
       22. The method of  claim 10 , wherein the undesirable vegetation is controlled in AAD-1 rice. 
     
     
       23. The method of  claim 10 , wherein the undesirable vegetation is controlled in a crop that is acetyl coenzyme A carboxylase (ACCase)-tolerant, ALS (acetolactate synthase)-tolerant, or a combination thereof. 
     
     
       24. The method of  claim 10 , wherein the undesirable vegetation includes a broadleaf weed, a grass weed, or a sedge weed. 
     
     
       25. The method of  claim 10 , wherein the undesirable vegetation includes common lambsquarters, monochoria, barnyardgrass, Chinese sprangletop, small flower flatsedge,  Digitaria horizontalis , rice flatsedge, or bullgrass. 
     
     
       26. The method of  claim 10 , wherein the undesirable vegetation includes  Echinochloa  grass weed. 
     
     
       27. The method of  claim 26 , wherein the  Echinochloa  grass weeds include ALS and/or ACCase resistant  Echinochloa  grass weed. 
     
     
       28. The method of  claim 26 , wherein the  Echinochloa  grass weed includes barnyardgrass. 
     
     
       29. The method of  claim 10 , wherein the undesirable vegetation includes red rice/weedy rice. 
     
     
       30. The method of  claim 29 , wherein the undesirable vegetation includes red rice and/or weedy rice that is resistant to ALS herbicides, ACCase herbicides, propanil, quinclorac, glyphosate and/or glufosinate. 
     
     
       31. The method of  claim 10 , wherein the undesirable vegetation comprises a herbicide resistant or tolerant weed. 
     
     
       32. The method of  claim 31  wherein the resistant or tolerant weed is a biotype with resistance or tolerance to single or multiple herbicides or single or multiple chemical classes, or inhibitors of single or multiple herbicide modes-of-action. 
     
     
       33. The method of  claim 32 , wherein the resistant or tolerant weed is a biotype resistant or tolerant to acetolactate synthase (ALS) or acetohydroxy acid synthase (AHAS) inhibitors, photosystem II inhibitors, acetyl CoA carboxylase (ACCase) inhibitors, photosystem I inhibitors, 5-enolpyruvyl-shikimate-3-phosphate (EPSP) synthase inhibitors, microtubule assembly inhibitors, lipid synthesis inhibitors, protoporphyrinogen oxidase (PPO) inhibitors, carotenoid biosynthesis inhibitors, very long chain fatty acid (VLCFA) inhibitors, phytoene desaturase (PDS) inhibitors, glutamine synthetase inhibitors, 4-hydroxyphenyl-pyruvate-dioxygenase (HPPD) inhibitors, mitosis inhibitors, cellulose biosynthesis inhibitors, auxinic/phenoxyacetic acid inhibitors, herbicides with multiple modes-of-action, quinclorac or arylaminopropionic acids.